Swim fin



FIG. 1 is a top perspective view of a swim fin showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side elevational view being a mirror image of that shown;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a cross sectional view thereof taken along line 7--7 of FIG. 2;

FIG. 8 is a cross sectional view thereof taken along line 7--7 of FIG. 2; and,

FIG. 9 is a cross sectional view thereof taken along line 9--9 of FIG. 2. 

The ornamental design for a swim fin, as shown and described. 